- Before servicing the vehicle, refer to the Precautions Section.
Drain the engine coolant to a level below the sensor.
- Unplug the sensor wiring harness.
- Remove the retaining clip and remove the sensor from the coolant pipe or radiator as applicable.
- Use a new o-ring and insert the sensor.
- Engage the retaining clip.
- Refill the cooling system to the proper level.